Passlock GM security Problem 99 blazer

I recently changed the speakers in my doors, and obviously ripped apart all the doors, put them in and when i went to start ithe car the security is going off and it wont turn over. I also realized my battery is dead, not to help the problem, I heard I need to get my car towed to a GM dealer and they need to reprogram it, Which SUCKS. I am wondering if anyone else had any wierd PASSlock problems or if anyone knows how to solve something like this. Thanks alot. I heard you can bypass the theft system with resistance to the computer or something, I think my dead battery, which i tested is only putting out liek 8 volts somehow, so that might have falsified the resistance the cpu is supposed to recieve. Only idea is the battery died abruptly because i had it in a minorly lit garage and it turned the headlights on by default when i was working on it but didnt notice cause the radio was off? no clue. Any ideas/help? thanks alot99 Blazer LT.   Yellow Top. Big 3. Infinity Kappa Speakers All Around. Jensen CD/DVD flip out. 2 Infinity Kappa Perfect 12DVQs powered by a Alpine PDX600.1 (in one custom box, building a FG box)

Have you replaced the battery yet?Steve G

Charge the battery. Once battery is charged fully, start with the key. Is there a remote start in this thing?? Gus Wherever I go, that is where I end up......

no remote start. got a yellow top in it today, and a guy i know cscanned it and needed to reformat the cpu or something... eh done deal. thanks guys. i will put a remote start in there soon any tips or suggestions?99 Blazer LT.   Yellow Top. Big 3. Infinity Kappa Speakers All Around. Jensen CD/DVD flip out. 2 Infinity Kappa Perfect 12DVQs powered by a Alpine PDX600.1 (in one custom box, building a FG box)